AC starts and then stops working
07-20-11, 02:07 PM
#16
Yeah Sakataj, i read tht from a previous post you posted. I went to an AC shop where they did everything & properly charged the system(no leak). but now, the compressor comes on but no cold air. It was fine after i left the shop on Sat... however, since monday it blows straight hot air while the compressor is on. so, i will ck the ambient sensor like they previously mentioned, if not will take it back to the shop.
I see you had a new condensor put in, did they change the accumulator and drier at the same time? im wondering if you might have a restriction in the system
07-22-11, 07:59 AM
#17
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Nah, i ddnt change the dryer & the accumulator only bc the system wasnt open like tht although i shld have. I strongly believe its a sensor. Like yest, it worked fine for over 1 hour still it stopped for abt 5 min then come back on. i check the pressure its 40 on the low & 210 on the high side. I'll hv the dealer look into it.
07-22-11, 01:16 PM
#19
SIGH,your just full of inaccurate info aren't you? don't use those cheap gauges from the auto parts stores they tend to be inaccurate. use real a/c gauges not to mention the pressure should be checked on the on the LOW side (not the fill side) wording isnt really the issue here, the most inaccurate info has got to be the 44 PSI you claiming, just a heads up guys if u have 44psi you can only get down to about a 50 degree evaporator temp. what it should actually be charged to is about 30psi which will get you to a 35 degree evaporator or 35psi to get you to about a 40 degree evaporator temperature.....but hey what do i know? i have only managed a HVAC supply house for almost the last decade so im sure you def know more about this than i do. 
I've been running the same psi since I left the shop who refilled my system, I admit my 44psi might be his 94.3234psi, so don't quote me at that. I'm not licensed, insured, bonded in hvac like you are -- wait, are you?
I was told by the guys at the a/c shop that I would be able to use that ****ty gauge to check the psi for my ref. So maybe since 2009 -- my a/c has been running on complete luck instead of r134.
Quit riding my nuts man, all you needed to do was correct my '44psi' statement.
07-22-11, 05:37 PM
#20
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sakataj, starfyrels - knock the personal comments off. I don't care who started it but it ends here and doesn't continue to future threads. https://www.clublexus.com/forums/faq...ponse_comments
To disagree on diagnosis or approach is absolutely fine (even expected), but quit the accompanying smarmy personal comments like "SIGH,your just full of inaccurate info aren't you?.... i have only managed a HVAC supply house for almost the last decade so im sure you def know more about this than i do. " and rude "riding my nuts" comments
If you can't do that, use the ignore list
https://www.clublexus.com/forums/pro...?do=ignorelist
To disagree on diagnosis or approach is absolutely fine (even expected), but quit the accompanying smarmy personal comments like "SIGH,your just full of inaccurate info aren't you?.... i have only managed a HVAC supply house for almost the last decade so im sure you def know more about this than i do. " and rude "riding my nuts" comments
If you can't do that, use the ignore list
https://www.clublexus.com/forums/pro...?do=ignorelist
06-14-12, 03:53 AM
#22
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Ac
I've this problem with my 93 LS400, the AC works fine when the car is parked but while driving after some miles the AC light starts blinking and then it stops blowing cool air. Bro you've any idea what is the problem? The fans working fine...
06-14-12, 06:23 PM
#23
Sounds like you are just low on freon and when you rev your motor your AC system raises the PSI... Compresses the gas and cools... Id try a cheap recharge kit from pepboys and see what it reads...
07-07-12, 09:40 AM
#25
can you help me too?
in my wifes 99gs3. her ac compressor kicks on, but doesnt always blow cold. sometimes on start up, it will blow cold. if not, i have to rev it up to about 5k rpms, then it will blow snow *****. the clutch does come on when i hit the ac button. i did the ac system check and got no codes. i have the right amount of freon in the car. i have replace the ac clutch rely with no luck. i might just be blind as a bat, because i can not find the sensor under the driver side you guys are talking about. does anyone have a picture of this?
could this be sensor problem? or is my compressor going out?
07-08-12, 02:09 PM
#29
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How did this turn out for you?. My compressor is on, but ac is only blowing hot. Had system checked today and mechanic told me that I had a 'low side restriction' - which after further discussion means they aren't really sure, but they want to check the system for clogs and suggest replacing the expansion valve and r&r receiver dryer. Total cost $1025.00.
Before I do this I want to make sure its not something simpler - temp sensor or relay for example?
Before I do this I want to make sure its not something simpler - temp sensor or relay for example?
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